This paper provides an analytical evaluation of the performance of proportional fair (PF) scheduling in Orthogonal Frequency-Division Multiple Access (OFDMA) wireless systems. OFDMA represents a promising multiple access scheme for transmission over wireless channels. as it combines the orthogonal frequency division multiplexing (OFDM) modulation and subcarrier allocation. On the othe... https://parisnaturalfoodes.shop/product-category/vitamin-d-conc-drops/